高压电器2018，Vol.54Issue(8)：225-230,236,7.DOI:10.13296/j.1001-1609.hva.2018.08.035
交流500 kV交联聚乙烯绝缘海缆设计关键问题
Key Problems of Design for AC 500 kV Cross-linked Polyethylene Insulation Submarine Cable
摘要
Abstract
In order to develop world's first 500 kV cross-linked polyethylene insulation submarine cable, the critical technology during design are summarized such as the design of the AC resistance, the selection of insulation buffer layer and the electric field design of flexible joint. Owning to the distance among the different phases submarine cable conductors, the neighbor effect on the AC resistance could be neglected. The buffer layer could be selected by thermal expansion test of insulated cable conductor. The control of the electric field at the interface between the flexible joint and the cable is the key to design the electric field inner submarine cable flexible joint. Calculation of induced voltage on the cable metal sheath and armor layer is the important basis to confirm the position of the middle ground.关键词
交联聚乙烯/海底电缆/交流电阻/缓冲层/软接头Key words
cross-linked polyethylene/submarine cable/AC resistance/buffer layer/flexible joint引用本文复制引用
王少华,阎黎冰,李特,任广振,周象贤,江贞星,江航..交流500 kV交联聚乙烯绝缘海缆设计关键问题[J].高压电器,2018,54(8):225-230,236,7.基金项目
国家电网公司科技项目 (5211DS17002F).Project Supported by Science and Technology Foundation of SGCC(5211DS17002F). （5211DS17002F）
